org.debellor.core.data
Class SymbolicFeature.SymbolicFeatureType

java.lang.Object
  org.debellor.core.DataType
      org.debellor.core.data.SymbolicFeature.SymbolicFeatureType

Enclosing class:

SymbolicFeature

public static final class SymbolicFeature.SymbolicFeatureType
extends DataType

Field Summary

java.lang.String[]

values Dictionary of possible values.

Fields inherited from class org.debellor.core.DataType

dataClass, NOT_PRESENT, UNKNOWN

Constructor Summary

SymbolicFeature.SymbolicFeatureType()
Constructs a SymbolicFeatureType without the dictionary of possible values.

SymbolicFeature.SymbolicFeatureType(int size)

SymbolicFeature.SymbolicFeatureType(java.lang.String... values)
Constructs a SymbolicFeatureType with the dictionary of possible values passed as an array String[] or as a variable-length parameter list.

Method Summary

int	codeOf(java.lang.String value)
java.lang.String	get(int i)
int	size()
java.lang.String	toString()
java.lang.String	toString(java.lang.String separator, java.lang.String quote)

Methods inherited from class org.debellor.core.DataType

asDataVectorType, asSymbolicFeatureType

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

values

public final java.lang.String[] values

Dictionary of possible values. If non-null, contains a set of all symbolic values that may appear in the data stream. Additionally, defines a mapping between symbolic values and numeric codes, given by indices of the array. This mapping may or may not be used by data consumers to convert symbolic values to numbers. Note that for trainable cells it is possible that input data at the processing stage contain some other symbolic values, not present at the training stage (neither in the SymbolicFeatureType specification nor in the actual data received). It is desirable, although not mandatory, that the cell be able to handle such case.

Null value means that the set of possible symbolic values is unknown and the consumer of data should expect any value.

Constructor Detail

SymbolicFeature.SymbolicFeatureType

public SymbolicFeature.SymbolicFeatureType()

Constructs a SymbolicFeatureType without the dictionary of possible values.

SymbolicFeature.SymbolicFeatureType

public SymbolicFeature.SymbolicFeatureType(java.lang.String... values)

Constructs a SymbolicFeatureType with the dictionary of possible values passed as an array String[] or as a variable-length parameter list.

SymbolicFeature.SymbolicFeatureType

public SymbolicFeature.SymbolicFeatureType(int size)

Parameters:

size - Number of symbols. Their values will be "0","1",...

Method Detail

size

public int size()

get

public java.lang.String get(int i)

codeOf

public int codeOf(java.lang.String value)
           throws SymbolicValueNotFoundException

Throws:

SymbolicValueNotFoundException

toString

public java.lang.String toString(java.lang.String separator,
                                 java.lang.String quote)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object